From nobody Wed Nov 27 02:32:41 2024 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D48D0231C95; Tue, 15 Oct 2024 07:45:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728978309; cv=none; b=SbgznLGJOtD/IXkdk2E4wyIOIIjz/a0TDgbdLW4JDzafvZzpCVawq1pnZAXkUk8J4IfG/obAWzTtOg74MsXmk9jtfEOp4qJaWbqo1NEPh0Ah6qQO3ynYv+9AP3lIR0PHLKtPOEUwi9S/bSk1nR5tDu3OViy/YBWTVqu1YFWzA04= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728978309; c=relaxed/simple; bh=VM730l2qFb0YD0FEHTmVV8j8ITO1tx28eMDxqydRoxU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=NG6qXLgwlbmNKjsJktHQ6/j/sdIpASglomPZT0nLVAQAwT1TOV6I5PaeMU7tl459M2Fbh794w+9dPn9V7Z/jkuvN7A/qWqV9bx4f+LjxL7o3YJorwblDNqEHwzAF0b9W2TBK1hZSl15Xrvdde+UwJ0RIRLk5gt/04Wdds6TNR1I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Oh+hcgvw; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Oh+hcgvw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1728978308; x=1760514308; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=VM730l2qFb0YD0FEHTmVV8j8ITO1tx28eMDxqydRoxU=; b=Oh+hcgvwCB5QFZZGDS7zWlV9Kdh37pwB89uGWbgLaSfCFl5QZ4s6GKFf iw5DL6ul2i3BOoihSROIEkG85965XOgIi4oiKtBGOW8HXdh2ePCJVT6Zx 69+UcWRXYSCKhO1JEXoQblZdJLUGfV42aw0+SLuqO1vZKZBO7DYZqqqht D5O83Ez2IiBbtu17YODNXn4cVmRmtsYpQDSntspM/vqgDNp+Hor508730 HjNA2nAsARg8cWShhYXWU3jwJhnR4E2riLN86S9W8sYGk/oN87GSt406B nNe3LFsrbaqA+vsy6LpM7rQrf/tsTLEj5fwjDOF0IZyL2IXNl7WHx7yyo Q==; X-CSE-ConnectionGUID: 6XqEx/0bSLueCfmLSOGK4Q== X-CSE-MsgGUID: 3qWE7a0QQ+uZHQX0AbJ1uw== X-IronPort-AV: E=McAfee;i="6700,10204,11225"; a="28483562" X-IronPort-AV: E=Sophos;i="6.11,204,1725346800"; d="scan'208";a="28483562" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2024 00:45:04 -0700 X-CSE-ConnectionGUID: iyPOuqyDSmmFmfGIaC70Ug== X-CSE-MsgGUID: +ytgteYUQ0mwdP3hj95lhg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,204,1725346800"; d="scan'208";a="77752370" Received: from qiuxu-clx.sh.intel.com ([10.239.53.109]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2024 00:45:02 -0700 From: Qiuxu Zhuo To: Tony Luck Cc: Qiuxu Zhuo , Borislav Petkov , James Morse , Mauro Carvalho Chehab , Robert Richter , Diego Garcia Rodriguez , linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/2] EDAC/{skx_common,i10nm}: Fix incorrect far-memory error source indicator Date: Tue, 15 Oct 2024 15:22:36 +0800 Message-Id: <20241015072236.24543-3-qiuxu.zhuo@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20241015072236.24543-1-qiuxu.zhuo@intel.com> References: <20241015072236.24543-1-qiuxu.zhuo@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The Granite Rapids CPUs with Flat2LM memory configurations may mistakenly report near-memory errors as far-memory errors, resulting in the invalid decoded ADXL results: EDAC skx: Bad imc -1 Fix this incorrect far-memory error source indicator by prefetching the decoded far-memory controller ID, and adjust the error source indicator to near-memory if the far-memory controller ID is invalid. Fixes: ba987eaaabf9 ("EDAC/i10nm: Add Intel Granite Rapids server support") Tested-by: Diego Garcia Rodriguez Signed-off-by: Qiuxu Zhuo --- drivers/edac/i10nm_base.c | 1 + drivers/edac/skx_common.c | 23 +++++++++++++++++++++++ drivers/edac/skx_common.h | 1 + 3 files changed, 25 insertions(+) diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c index e2a954de913b..51556c72a967 100644 --- a/drivers/edac/i10nm_base.c +++ b/drivers/edac/i10nm_base.c @@ -1036,6 +1036,7 @@ static int __init i10nm_init(void) return -ENODEV; =20 cfg =3D (struct res_config *)id->driver_data; + skx_set_res_cfg(cfg); res_cfg =3D cfg; =20 rc =3D skx_get_hi_lo(0x09a2, off, &tolm, &tohm); diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c index 52b462899870..6cf17af7d911 100644 --- a/drivers/edac/skx_common.c +++ b/drivers/edac/skx_common.c @@ -47,6 +47,7 @@ static skx_show_retry_log_f skx_show_retry_rd_err_log; static u64 skx_tolm, skx_tohm; static LIST_HEAD(dev_edac_list); static bool skx_mem_cfg_2lm; +static struct res_config *skx_res_cfg; =20 int skx_adxl_get(void) { @@ -135,6 +136,22 @@ static bool skx_adxl_decode(struct decoded_addr *res, = enum error_source err_src) return false; } =20 + /* + * GNR with a Flat2LM memory configuration may mistakenly classify + * a near-memory error(DDR5) as a far-memory error(CXL), resulting + * in the incorrect selection of decoded ADXL components. + * To address this, prefetch the decoded far-memory controller ID + * and adjust the error source to near-memory if the far-memory + * controller ID is invalid. + */ + if (skx_res_cfg && skx_res_cfg->type =3D=3D GNR && err_src =3D=3D ERR_SRC= _2LM_FM) { + res->imc =3D (int)adxl_values[component_indices[INDEX_MEMCTRL]]; + if (res->imc =3D=3D -1) { + err_src =3D ERR_SRC_2LM_NM; + edac_dbg(0, "Adjust the error source to near-memory.\n"); + } + } + res->socket =3D (int)adxl_values[component_indices[INDEX_SOCKET]]; if (err_src =3D=3D ERR_SRC_2LM_NM) { res->imc =3D (adxl_nm_bitmap & BIT_NM_MEMCTRL) ? @@ -191,6 +208,12 @@ void skx_set_mem_cfg(bool mem_cfg_2lm) } EXPORT_SYMBOL_GPL(skx_set_mem_cfg); =20 +void skx_set_res_cfg(struct res_config *cfg) +{ + skx_res_cfg =3D cfg; +} +EXPORT_SYMBOL_GPL(skx_set_res_cfg); + void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_l= og) { driver_decode =3D decode; diff --git a/drivers/edac/skx_common.h b/drivers/edac/skx_common.h index cd47f8186831..54bba8a62f72 100644 --- a/drivers/edac/skx_common.h +++ b/drivers/edac/skx_common.h @@ -241,6 +241,7 @@ int skx_adxl_get(void); void skx_adxl_put(void); void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_l= og); void skx_set_mem_cfg(bool mem_cfg_2lm); +void skx_set_res_cfg(struct res_config *cfg); =20 int skx_get_src_id(struct skx_dev *d, int off, u8 *id); int skx_get_node_id(struct skx_dev *d, u8 *id); --=20 2.17.1